ldc.c File Reference

#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/scatterlist.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/init.h>
#include <linux/bitmap.h>
#include <asm/hypervisor.h>
#include <asm/iommu.h>
#include <asm/page.h>
#include <asm/ldc.h>
#include <asm/mdesc.h>

Go to the source code of this file.

Data Structures
struct	ldc_packet
struct	ldc_version
struct	ldc_mode_ops
struct	ldc_iommu
struct	ldc_channel
struct	cookie_state

Macros
#define	DRV_MODULE_NAME   "ldc"
#define	PFX   DRV_MODULE_NAME ": "
#define	DRV_MODULE_VERSION   "1.1"
#define	DRV_MODULE_RELDATE   "July 22, 2008"
#define	LDC_PACKET_SIZE   64
#define	LDC_CTRL   0x01
#define	LDC_DATA   0x02
#define	LDC_ERR   0x10
#define	LDC_INFO   0x01
#define	LDC_ACK   0x02
#define	LDC_NACK   0x04
#define	LDC_VERS   0x01 /* Link Version */
#define	LDC_RTS   0x02 /* Request To Send */
#define	LDC_RTR   0x03 /* Ready To Receive */
#define	LDC_RDX   0x04 /* Ready for Data eXchange */
#define	LDC_CTRL_MSK   0x0f
#define	LDC_LEN   0x3f
#define	LDC_FRAG_MASK   0xc0
#define	LDC_START   0x40
#define	LDC_STOP   0x80
#define	LDC_DEFAULT_MTU   (4 * LDC_PACKET_SIZE)
#define	LDC_DEFAULT_NUM_ENTRIES   (PAGE_SIZE / LDC_PACKET_SIZE)
#define	LDC_HS_CLOSED   0x00
#define	LDC_HS_OPEN   0x01
#define	LDC_HS_GOTVERS   0x02
#define	LDC_HS_SENTRTR   0x03
#define	LDC_HS_GOTRTR   0x04
#define	LDC_HS_COMPLETE   0x10
#define	LDC_FLAG_ALLOCED_QUEUES   0x01
#define	LDC_FLAG_REGISTERED_QUEUES   0x02
#define	LDC_FLAG_REGISTERED_IRQS   0x04
#define	LDC_FLAG_RESET   0x10
#define	LDC_IRQ_NAME_MAX   32
#define	ldcdbg(TYPE, f, a...)
#define	LDC_IOTABLE_SIZE   (8 * 1024)
#define	COOKIE_PGSZ_CODE   0xf000000000000000ULL
#define	COOKIE_PGSZ_CODE_SHIFT   60ULL

Functions
struct ldc_channel *	ldc_alloc (unsigned long id, const struct ldc_channel_config *cfgp, void *event_arg)
	EXPORT_SYMBOL (ldc_alloc)
void	ldc_free (struct ldc_channel *lp)
	EXPORT_SYMBOL (ldc_free)
int	ldc_bind (struct ldc_channel *lp, const char *name)
	EXPORT_SYMBOL (ldc_bind)
int	ldc_connect (struct ldc_channel *lp)
	EXPORT_SYMBOL (ldc_connect)
int	ldc_disconnect (struct ldc_channel *lp)
	EXPORT_SYMBOL (ldc_disconnect)
int	ldc_state (struct ldc_channel *lp)
	EXPORT_SYMBOL (ldc_state)
int	ldc_write (struct ldc_channel *lp, const void *buf, unsigned int size)
	EXPORT_SYMBOL (ldc_write)
int	ldc_read (struct ldc_channel *lp, void *buf, unsigned int size)
	EXPORT_SYMBOL (ldc_read)
int	ldc_map_sg (struct ldc_channel *lp, struct scatterlist *sg, int num_sg, struct ldc_trans_cookie *cookies, int ncookies, unsigned int map_perm)
	EXPORT_SYMBOL (ldc_map_sg)
int	ldc_map_single (struct ldc_channel *lp, void *buf, unsigned int len, struct ldc_trans_cookie *cookies, int ncookies, unsigned int map_perm)
	EXPORT_SYMBOL (ldc_map_single)
void	ldc_unmap (struct ldc_channel *lp, struct ldc_trans_cookie *cookies, int ncookies)
	EXPORT_SYMBOL (ldc_unmap)
int	ldc_copy (struct ldc_channel *lp, int copy_dir, void *buf, unsigned int len, unsigned long offset, struct ldc_trans_cookie *cookies, int ncookies)
	EXPORT_SYMBOL (ldc_copy)
void *	ldc_alloc_exp_dring (struct ldc_channel *lp, unsigned int len, struct ldc_trans_cookie *cookies, int *ncookies, unsigned int map_perm)
	EXPORT_SYMBOL (ldc_alloc_exp_dring)
void	ldc_free_exp_dring (struct ldc_channel *lp, void *buf, unsigned int len, struct ldc_trans_cookie *cookies, int ncookies)
	EXPORT_SYMBOL (ldc_free_exp_dring)
	core_initcall (ldc_init)

Variables
int	ldom_domaining_enabled

Macro Definition Documentation

#define COOKIE_PGSZ_CODE   0xf000000000000000ULL

Definition at line 1913 of file ldc.c.

#define COOKIE_PGSZ_CODE_SHIFT   60ULL

Definition at line 1914 of file ldc.c.

#define DRV_MODULE_NAME   "ldc"

Definition at line 25 of file ldc.c.

#define DRV_MODULE_RELDATE   "July 22, 2008"

Definition at line 28 of file ldc.c.

#define DRV_MODULE_VERSION   "1.1"

Definition at line 27 of file ldc.c.

#define LDC_ACK   0x02

Definition at line 46 of file ldc.c.

#define LDC_CTRL   0x01

Definition at line 40 of file ldc.c.

#define LDC_CTRL_MSK   0x0f

Definition at line 54 of file ldc.c.

#define LDC_DATA   0x02

Definition at line 41 of file ldc.c.

#define LDC_DEFAULT_MTU   (4 * LDC_PACKET_SIZE)

Definition at line 84 of file ldc.c.

#define LDC_DEFAULT_NUM_ENTRIES   (PAGE_SIZE / LDC_PACKET_SIZE)

Definition at line 85 of file ldc.c.

#define LDC_ERR   0x10

Definition at line 42 of file ldc.c.

#define LDC_FLAG_ALLOCED_QUEUES   0x01

Definition at line 154 of file ldc.c.

#define LDC_FLAG_REGISTERED_IRQS   0x04

Definition at line 156 of file ldc.c.

#define LDC_FLAG_REGISTERED_QUEUES   0x02

Definition at line 155 of file ldc.c.

#define LDC_FLAG_RESET   0x10

Definition at line 157 of file ldc.c.

#define LDC_FRAG_MASK   0xc0

Definition at line 58 of file ldc.c.

#define LDC_HS_CLOSED   0x00

Definition at line 146 of file ldc.c.

#define LDC_HS_COMPLETE   0x10

Definition at line 151 of file ldc.c.

#define LDC_HS_GOTRTR   0x04

Definition at line 150 of file ldc.c.

#define LDC_HS_GOTVERS   0x02

Definition at line 148 of file ldc.c.

#define LDC_HS_OPEN   0x01

Definition at line 147 of file ldc.c.

#define LDC_HS_SENTRTR   0x03

Definition at line 149 of file ldc.c.

#define LDC_INFO   0x01

Definition at line 45 of file ldc.c.

#define LDC_IOTABLE_SIZE   (8 * 1024)

Definition at line 1003 of file ldc.c.

#define LDC_IRQ_NAME_MAX   32

Definition at line 162 of file ldc.c.

#define LDC_LEN   0x3f

Definition at line 57 of file ldc.c.

#define LDC_NACK   0x04

Definition at line 47 of file ldc.c.

#define LDC_PACKET_SIZE   64

Definition at line 32 of file ldc.c.

#define LDC_RDX   0x04 /* Ready for Data eXchange */

Definition at line 53 of file ldc.c.

#define LDC_RTR   0x03 /* Ready To Receive */

Definition at line 52 of file ldc.c.

#define LDC_RTS   0x02 /* Request To Send */

Definition at line 51 of file ldc.c.

#define LDC_START   0x40

Definition at line 59 of file ldc.c.

#define LDC_STOP   0x80

Definition at line 60 of file ldc.c.

#define LDC_VERS   0x01 /* Link Version */

Definition at line 50 of file ldc.c.

#define ldcdbg	(		TYPE,
			f,
			a...
	)

Value:

do {    if (lp->cfg.debug & LDC_DEBUG_##TYPE) \
        printk(KERN_INFO PFX "ID[%lu] " f, lp->id, ## a); \
} while (0)

Definition at line 171 of file ldc.c.

#define PFX   DRV_MODULE_NAME ": "

Definition at line 26 of file ldc.c.

Function Documentation

core_initcall

(

ldc_init

)

EXPORT_SYMBOL

(

ldc_alloc

)

EXPORT_SYMBOL

(

ldc_free

)

EXPORT_SYMBOL

(

ldc_bind

)

EXPORT_SYMBOL

(

ldc_connect

)

EXPORT_SYMBOL

(

ldc_disconnect

)

EXPORT_SYMBOL

(

ldc_state

)

EXPORT_SYMBOL

(

ldc_write

)

EXPORT_SYMBOL

(

ldc_read

)

EXPORT_SYMBOL

(

ldc_map_sg

)

EXPORT_SYMBOL

(

ldc_map_single

)

EXPORT_SYMBOL

(

ldc_unmap

)

EXPORT_SYMBOL

(

ldc_copy

)

EXPORT_SYMBOL

(

ldc_alloc_exp_dring

)

EXPORT_SYMBOL

(

ldc_free_exp_dring

)

struct ldc_channel* ldc_alloc ( unsigned long  id, const struct ldc_channel_config *  cfgp, void *  event_arg  )

read

Definition at line 1080 of file ldc.c.

void* ldc_alloc_exp_dring	(	struct ldc_channel *	lp,
		unsigned int	len,
		struct ldc_trans_cookie *	cookies,
		int *	ncookies,
		unsigned int	map_perm
	)

Definition at line 2300 of file ldc.c.

int ldc_bind	(	struct ldc_channel *	lp,
		const char *	name
	)

Definition at line 1241 of file ldc.c.

int ldc_connect

(

struct ldc_channel *

lp

)

Definition at line 1327 of file ldc.c.

int ldc_copy	(	struct ldc_channel *	lp,
		int	copy_dir,
		void *	buf,
		unsigned int	len,
		unsigned long	offset,
		struct ldc_trans_cookie *	cookies,
		int	ncookies
	)

Definition at line 2210 of file ldc.c.

int ldc_disconnect

(

struct ldc_channel *

lp

)

Definition at line 1350 of file ldc.c.

void ldc_free

(

struct ldc_channel *

lp

)

Definition at line 1208 of file ldc.c.

void ldc_free_exp_dring	(	struct ldc_channel *	lp,
		void *	buf,
		unsigned int	len,
		struct ldc_trans_cookie *	cookies,
		int	ncookies
	)

Definition at line 2325 of file ldc.c.

int ldc_map_sg	(	struct ldc_channel *	lp,
		struct scatterlist *	sg,
		int	num_sg,
		struct ldc_trans_cookie *	cookies,
		int	ncookies,
		unsigned int	map_perm
	)

Definition at line 2082 of file ldc.c.

int ldc_map_single	(	struct ldc_channel *	lp,
		void *	buf,
		unsigned int	len,
		struct ldc_trans_cookie *	cookies,
		int	ncookies,
		unsigned int	map_perm
	)

Definition at line 2128 of file ldc.c.

int ldc_read	(	struct ldc_channel *	lp,
		void *	buf,
		unsigned int	size
	)

Definition at line 1858 of file ldc.c.

int ldc_state

(

struct ldc_channel *

lp

)

Definition at line 1404 of file ldc.c.

void ldc_unmap	(	struct ldc_channel *	lp,
		struct ldc_trans_cookie *	cookies,
		int	ncookies
	)

Definition at line 2192 of file ldc.c.

int ldc_write	(	struct ldc_channel *	lp,
		const void *	buf,
		unsigned int	size
	)

Definition at line 1834 of file ldc.c.

Variable Documentation

int ldom_domaining_enabled

Definition at line 98 of file ldc.c.